High-standard farmland water-saving irrigation system

Abstract

The invention discloses a high-standard farmland water-saving irrigation system, and belongs to the field of irrigation systems, the high-standard farmland water-saving irrigation system comprises a guide cylinder, the lower end of the guide cylinder is fixedly connected with a separation cylinder, the outer surface of the lower end of the separation cylinder is fixedly connected with a connecting pipe, and the outer surface of the connecting pipe is fixedly connected with a material collecting box; a flow blocking assembly used for blocking silt from flowing back is arranged on the inner side of the connecting pipe, the flow blocking assembly comprises a fixing frame fixedly connected with the inner surface of the connecting pipe, a movable plate is hinged to the portion, located on the lower side of the fixing frame, of the inner surface of the connecting pipe, and the movable plate is of a fan-shaped structure. By arranging the flow blocking assembly, the movable plates can be gathered again from a dispersed state, and the interior of the connecting pipe is sealed through the movable plates, so that silt can be effectively prevented from flowing back upwards, the probability that the silt and water flow are mixed again can be reduced, and the water flow filtering quality can be guaranteed; meanwhile, the stability of the water flow filtering system can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of irrigation systems, and more specifically, to a water-saving irrigation system for high-standard farmland. Background Art

[0002] The farmland irrigation system is a crucial part of agricultural production, which plays a key role in ensuring the growth and yield of crops. Its main equipment includes water pumps, water conveyance pipelines, filtration equipment, sprinkler irrigation systems, etc. The water sources of the farmland irrigation system are usually wells, rivers, etc. The water in wells and rivers contains sand and gravel. In order to avoid clogging of irrigation nozzles by sediment in the water, a filtration device is usually required to filter the sand and gravel in the water; The filtration device is an important part to ensure the normal operation of the irrigation system and improve the water resource utilization efficiency. The irrigation system filtration device mainly includes sand filters, centrifugal filters, disc filters, etc. For example, the Chinese patent with the publication number CN222173392U discloses a centrifugal filtration device for water-saving irrigation. The stirring rod drives the stirring blades to stir the water inside it, so that the water makes full contact with the inner wall of the sedimentation tank. The lead screw drives the moving ring to move back and forth, so that the moving ring can scrape the impurities on the inner wall of the sedimentation tank into the water, thus facilitating the cleaning of the inner wall of the filter and helping to reduce the cleaning difficulty of the filter; The main principle of the centrifugal filtration device in the prior art is that the water flow rotates to generate centrifugal force, which pushes the sediment and solid particles with higher density to move along the pipe wall to form a swirling flow, so that the sand and solid particles enter the sand collection tank, while the purified water flows out along the water outlet along the flow, realizing the separation of water and sand. However, when the filter starts and stops and when the water inflow changes, the water flow velocity and pressure in the filter will change, which will cause the sand and gravel deposited in the sand collection tank to be lifted up again and return to the filter along with the water flow, resulting in sand and gravel backflow. This will not only affect the water flow filtration efficiency, but also increase the probability of sediment clogging of the irrigation nozzles, thus having an adverse impact on the operation stability of the farmland irrigation system. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a water-saving irrigation system for high-standard farmland. By setting a flow-blocking component, the movable plate will re-gather from the dispersed state, and the inside of the connecting pipe is sealed by the movable plate, so as to effectively prevent the sediment from flowing back upward, thereby reducing the probability of the sediment mixing with the water flow again, ensuring the water flow filtration quality, and effectively improving the stability of the water flow filtration system.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] A high-standard farmland water-saving irrigation system includes a diversion cylinder. The lower end of the diversion cylinder is fixedly connected with a separation cylinder. The outer surface of the lower end of the separation cylinder is fixedly connected with a connecting pipe. An aggregate box is fixedly connected to the outer surface of the connecting pipe. A flow-blocking component for preventing sediment backflow is arranged inside the connecting pipe. The flow-blocking component includes a fixing frame fixedly connected to the inner surface of the connecting pipe. A movable plate is hinged to the inner surface of the connecting pipe below the fixing frame. The movable plate is in a fan-shaped structure. The number of the movable plates is multiple and they are distributed in a circular array. Traction ropes are fixedly connected to the outer surfaces of the upper ends of the multiple movable plates. The upper ends of the traction ropes are fixedly connected to the outer surface of the lower end of the fixing frame. A fixing cylinder is fixedly connected to the lower side of the outer surface of the connecting pipe. The lower end of the fixing cylinder is fixedly connected to the inner surface of the lower end of the aggregate box.

[0006] Furthermore, the lower end of the connecting pipe is communicated with the inside of the fixing cylinder. A water outlet pipe is fixedly connected to the outer surface of the upper end of the diversion cylinder. A water inlet pipe is fixedly connected to the rear side of the outer surface of the diversion cylinder. The diversion cylinder is connected to a water pump through the water inlet pipe. An isolation cover is fixedly connected to the upper end of the inner surface of the diversion cylinder. Both the upper and lower ends of the isolation cover are open.

[0007] Furthermore, a backflow component is arranged outside the fixing cylinder. The backflow component includes a screen fixedly connected to the outer surface of the fixing cylinder. The screen is in a circular ring shape. A filter screen is fixedly connected to the upper end of the inner surface of the aggregate box. A diversion plate is fixedly connected to the outer surface of the lower end of the filter screen. An overflow groove is formed in the outer surface of the connecting pipe. The number of the overflow grooves is multiple and they are distributed in a circular array. The lower end of the diversion plate is located below the overflow groove.

[0008] Furthermore, a sealing component is arranged inside the connecting pipe. The sealing component includes movable grooves formed in the inner surface of the connecting pipe. The number of the movable grooves is two and they are symmetrically distributed. Movable blocks are slidably connected to the inner sides of the two movable grooves. An extrusion pipe is fixedly connected between the two movable blocks. The extrusion pipe is in a hollow circular ring shape. The extrusion pipe is located below the movable plate.

[0009] Furthermore, a top plate is fixedly connected to the outer surface of the extrusion pipe. The top plate is distributed in a circular ring shape. A sealing curtain is fixedly connected to the inner surface of the connecting pipe below the overflow groove. The number of the sealing curtains is multiple and they are distributed in a circular array. The top plate is directly below the sealing curtain. The sealing curtain is made of a flexible material.

[0010] Furthermore, a discharge assembly is provided inside the fixed cylinder. The discharge assembly includes a sealing plate fixedly connected to the inner surface of the fixed cylinder. An installation groove is formed on the outer surface of the upper end of the sealing plate. A movable rod is fixedly connected to the inner surface of the installation groove. A flap is rotatably connected to the outer surface of the movable rod. A buffer plate is fixedly connected to the right side of the outer surface of the lower end of the connecting pipe. A pull bar is fixedly connected to the outer surface of the lower end of the flap. The lower end of the pull bar is fixedly connected to the inner surface of the lower end of the aggregate box. The pull bar is made of an elastic material.

[0011] Furthermore, guide grooves are formed on the outer surface of the upper end of the flap. The number of the guide grooves is two groups and they are distributed in parallel. A scraper is slidably connected to the inner side of the guide grooves. The scraper is in a U-shaped structure. The outer surface of the lower end of the scraper is in sliding contact with the upper end of the flap. A limiting plate is fixedly connected to the left side of the inner surface of the fixed cylinder. The limiting plate is located below the sealing plate.

[0012] Furthermore, a baffle curtain is fixedly connected to the lower end of the inner surface of the fixed cylinder. The number of the baffle curtains is two groups and they are symmetrically distributed on the front and back sides of the flap. The baffle curtain is made of a flexible material. A fixing rod is fixedly connected between the two baffle curtains.

[0013] Furthermore, a cable is fixedly connected to the middle of the outer surface of the baffle curtain. A material receiving plate is fixedly connected to the outer surface of the cable. The cable is made of an elastic material. The material receiving plate is located directly below the connecting pipe. The baffle curtain is in an arc shape.

[0014] Furthermore, a sand discharge port is formed on the left side of the outer surface of the fixed cylinder. A sewage discharge pipe is fixedly connected to the left side of the outer surface of the aggregate box. A gate valve is fixedly connected to the inner surface of the sewage discharge pipe. The buffer plate is in an arc shape. The separation cylinder is in a conical shape.

[0015] Compared with the prior art, the advantages of the present invention are as follows: (1) In this solution, by providing a flow blocking assembly, the movable plate will re-gather from a dispersed state, and the inside of the connecting pipe is sealed by the movable plate, so as to effectively prevent the sediment from flowing back upwards, thereby reducing the probability of the sediment mixing with the water flow again, ensuring the water flow filtration quality, and effectively improving the stability of the water flow filtration system; (2) In this solution, by providing a sealing assembly, the movable plate is made to gather more tightly under the push of the extrusion pipe, which helps to improve the sealing effect of the movable plate on the inside of the connecting pipe. The overflow groove on the surface of the connecting pipe is sealed by the sealing curtain, so as to prevent the sediment inside the connecting pipe from overflowing to the outside through the overflow groove, effectively reducing the probability of the filter screen being blocked by sediment, and improving the operation stability of the farmland irrigation system; (3) By setting up the discharging component, the automatic flipping of the flap can scrape off the sediment on the surface of the flap in a timely manner, thus effectively reducing the residual amount of sediment on the surface of the flap, further effectively reducing the probability of sediment backflow, and further improving the water quality filtration quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a top view of the overall structure of the present invention; Figure 3 of the present invention Figure 2 is a sectional view taken along the line A-A in; Figure 4 of the present invention Figure 1 is a sectional view taken along the line B-B in; Figure 5 of the present invention Figure 2 is a sectional view taken along the line C-C in; Figure 6 of the present invention Figure 3 is an enlarged schematic view at D in; Figure 7 of the present invention Figure 3 is an enlarged schematic view at E in; Figure 8 of the present invention Figure 5 is an enlarged schematic view at F in.

[0017] Explanation of the reference numerals in the drawings: 11, aggregate box; 12, separation cylinder; 13, guide cylinder; 14, water inlet pipe; 15, water outlet pipe; 16, isolation cover; 17, sewage pipe; 18, gate valve; 19, screen; 20, fixed cylinder; 21, sand discharge port; 22, connecting pipe; 23, filter net; 24, guide plate; 25, fixing frame; 26, towing rope; 27, movable plate; 28, overflow trough; 29, limiting plate; 30, sealing plate; 31, installation groove; 32, movable rod; 33, flap; 35, pull bar; 36, guide groove; 37, scraper; 38, baffle curtain; 39, fixed rod; 40, movable groove; 41, movable block; 42, extrusion pipe; 43, sealing curtain; 44, top plate; 45, cable; 46, material receiving plate; 47, buffer plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 8 , a water-saving irrigation system for high-standard farmland, including a diversion cylinder 13. The lower end of the diversion cylinder 13 is fixedly connected with a separation cylinder 12. The outer surface of the lower end of the separation cylinder 12 is fixedly connected with a connecting pipe 22. An aggregate box 11 is fixedly connected to the outer surface of the connecting pipe 22. A flow-blocking component for preventing sediment from flowing back is arranged inside the connecting pipe 22; The flow-blocking component includes a fixing frame 25 fixedly connected to the inner surface of the connecting pipe 22. An activity plate 27 is hinged to the inner surface of the connecting pipe 22 below the fixing frame 25. The activity plate 27 is in a fan-shaped structure. The number of the activity plates 27 is multiple and they are distributed in a circular array. The upper outer surfaces of the multiple activity plates 27 are all fixedly connected with a traction rope 26. The upper end of the traction rope 26 is fixedly connected to the lower outer surface of the fixing frame 25. A fixing cylinder 20 is fixedly connected to the lower side of the outer surface of the connecting pipe 22. The lower end of the fixing cylinder 20 is fixedly connected to the inner surface of the lower end of the aggregate box 11.

[0020] The lower end of the connecting pipe 22 is communicated with the inside of the fixing cylinder 20. The upper outer surface of the diversion cylinder 13 is fixedly connected with a water outlet pipe 15. The rear side of the outer surface of the diversion cylinder 13 is fixedly connected with a water inlet pipe 14. The diversion cylinder 13 is connected to a water pump through the water inlet pipe 14. The upper end of the inner surface of the diversion cylinder 13 is fixedly connected with a partition cover 16. Both the upper and lower ends of the partition cover 16 are open.

[0021] By adopting the above technical solution, the irrigation water source for high-standard farmland usually uses well water or river water. In order to avoid the blockage of the irrigation sprinkler by sediment in the water, it is necessary to filter the irrigation water. In the prior art, a centrifugal filter is usually used to filter and separate the sediment in the water. During operation, water is injected into the inside of the diversion cylinder 13 through the water inlet pipe 14 by a water pump. The water inlet pipe 14 is located in the tangential direction of the diversion cylinder 13. After the water flows into the inside of the diversion cylinder 13, it will flow downward in a spiral shape between the diversion cylinder 13 and the partition cover 16 and gradually gather into the inside of the separation cylinder 12. During the flowing process of the water, the sediment in the water will be separated from the water under the action of gravity and centrifugal force. Then the water flows through the partition cover into the inside of the water outlet pipe 15 and is conveyed to the water outlet end of the irrigation system through the water outlet pipe 15, while the sediment in the water will fall into the inside of the fixing cylinder 20 under the action of gravity; As the sediment inside the fixed cylinder 20 accumulates continuously, during the process of water flow separation in the separation cylinder 12, part of the sediment will be re-involved into the interior of the separation cylinder 12 through the connecting pipe 22. The sediment on the lower side will enter the interior of the isolation cover 16 along with the water flow and be transported to the outside of the guide cylinder 13, which will have an adverse impact on the water filtration quality. Therefore, a flow-blocking component is provided. When the sediment falls downward inside the connecting pipe 22, the movable plate 27 will expand outward from the gathered state under the action of the gravity of the sediment. At this time, the sediment will fall downward through the gaps between the groups of movable plates 27. During the process of the movable plate 27 turning downward, the traction rope 26 will be stretched. The connecting pipe 22 fixes and supports the traction rope 26 through the fixed frame 25. When the sediment inside the fixed cylinder 20 flows backward upward, the movable plate 27 will turn upward and reset under the elastic force of the traction rope 26. At this time, the multiple groups of movable plates 27 distributed in a circular array will gather again from the dispersed state, and the interior of the connecting pipe 22 will be sealed by the movable plate 27, so as to effectively prevent the sediment from flowing backward upward, thereby reducing the probability of the sediment mixing with the water flow again, ensuring the water filtration quality, and effectively improving the stability of the water filtration system at the same time.

[0022] As Figure 3 , Figure 5 and Figure 7 shown, a reflux assembly is provided on the outer side of the fixed cylinder 20. The reflux assembly includes a screen 19 fixedly connected to the outer surface of the fixed cylinder 20. The screen 19 is circular. The upper end inner surface of the aggregate box 11 is fixedly connected with a filter screen 23. The lower outer surface of the filter screen 23 is fixedly connected with a guide plate 24. An overflow groove 28 is formed on the outer surface of the connecting pipe 22. The number of the overflow grooves 28 is multiple and they are distributed in a circular array. The lower end of the guide plate 24 is located below the overflow groove 28.

[0023] By adopting the above technical solution, part of the sediment and water flow will be stored inside the aggregate box 11. In order to recycle the water inside the aggregate box 11, a reflux assembly is provided. The water flow inside the fixed cylinder 20 overflows into the aggregate box 11. The screen 19 inside the aggregate box 11 can prevent the sediment in the water from flowing backward upward along with the water flow. As the water flow inside the aggregate box 11 increases continuously, the water will enter the upper side of the guide plate 24 after being filtered by the filter screen 23, and then flow backward into the connecting pipe 22 through the overflow groove 28 under the gathering action of the guide plate 24. The flowing water can impact the sediment inside the connecting pipe 22, thereby accelerating the falling of the sediment inside the connecting pipe 22, improving the cleaning effect on the sediment, reducing the probability of the connecting pipe 22 being blocked by the sediment, and improving the stability during the water filtration process.

[0024] As Figure 5 , Figure 7 and Figure 8As shown, a sealing assembly is provided inside the connecting pipe 22. The sealing assembly includes an activity groove 40 formed on the inner surface of the connecting pipe 22. The number of the activity grooves 40 is two groups and they are symmetrically distributed. An activity block 41 is slidably connected inside each of the two groups of activity grooves 40. An extrusion pipe 42 is fixedly connected between the two activity blocks 41. The extrusion pipe 42 is in a hollow circular ring shape and is located below the activity plate 27.

[0025] The outer surface of the extrusion pipe 42 is fixedly connected with a top plate 44. The top plates 44 are distributed in a circular ring shape. A sealing curtain 43 is fixedly connected to the inner surface of the connecting pipe 22 below the overflow groove 28. The number of the sealing curtains 43 is multiple groups and they are distributed in a circular array. The top plate 44 is directly below the sealing curtain 43. The sealing curtain 43 is made of a flexible material.

[0026] By adopting the above technical solution, when the sediment inside the connecting pipe 22 flows back, in order to prevent the sediment from entering the outside of the guide plate 24 and blocking the filter screen 23, a sealing assembly is provided. The connecting pipe 22 slidably supports the activity block 41 through the activity groove 40, and fixedly supports the extrusion pipe 42 through the activity block 41. When the sediment flows back, the extrusion pipe 42 will move upward under the action of buoyancy. During the upward movement of the extrusion pipe 42, it will be in close contact with the outer surface of the lower end of the activity plate 27, so that the activity plate 27 will be gathered more tightly under the push of the extrusion pipe 42, which helps to improve the sealing effect of the activity plate 27 on the inside of the connecting pipe 22. At the same time, during the upward movement of the extrusion pipe 42, it will drive the top plate 44 to move upward synchronously, and push the sealing curtain 43 upward through the top plate 44, so that the sealing curtain 43 is closely attached to the inner surface of the connecting pipe 22, and seals the overflow groove 28 on the surface of the connecting pipe 22 through the sealing curtain 43, so as to prevent the sediment inside the connecting pipe 22 from overflowing to the outside through the overflow groove 28, thereby effectively reducing the probability of the filter screen 23 being blocked by sediment, and further improving the operation stability of the farmland irrigation system.

[0027] As Figure 3 、 Figure 5 、 Figure 6 And Figure 8 As shown, a discharging assembly is provided inside the fixed cylinder 20. The discharging assembly includes a sealing plate 30 fixedly connected to the inner surface of the fixed cylinder 20. An installation groove 31 is formed on the outer surface of the upper end of the sealing plate 30. An activity rod 32 is fixedly connected to the inner surface of the installation groove 31. A flap 33 is rotatably connected to the outer surface of the activity rod 32. A buffer plate 47 is fixedly connected to the outer surface of the right side of the lower end of the connecting pipe 22. A pull bar 35 is fixedly connected to the outer surface of the lower end of the flap 33. The lower end of the pull bar 35 is fixedly connected to the inner surface of the lower end of the aggregate box 11. The pull bar 35 is made of an elastic material.

[0028] The outer surface of the upper end of the flap 33 is provided with a guide groove 36, and the number of the guide grooves 36 is two groups and they are distributed in parallel. A scraper 37 is slidably connected to the inner side of the guide groove 36, and the scraper 37 is in a U-shaped structure. The outer surface of the lower end of the scraper 37 is in sliding contact with the upper end of the flap 33. The left side of the inner surface of the fixed cylinder 20 is fixedly connected to a limiting plate 29, and the limiting plate 29 is located at the lower side of the sealing plate 30.

[0029] By adopting the above technical scheme, in order to avoid the accumulation of sediment inside the fixed tube 20 and reduce the probability of sediment backflow, a discharge assembly is set, the sealing plate 30 separates the interior of the fixed tube 20, and the sealing plate 30 fixes and supports the movable rod 32 through the mounting groove 31, so that the flap 33 is rotatably supported by the movable rod 32. When the sediment inside the connecting tube 22 falls downward, part of the sediment will fall onto the surface of the buffer plate 47 and fall onto the upper surface of the flap 33 under the guidance of the buffer plate 47. The flap 33 will flip downward under the action of the gravity of the sediment, and the limiting plate 29 on the lower side of the flap 33 limits the flap 33, so that the flap 33 can only flip to the side away from the limiting plate 29. As the flap 33 gradually flips, the sediment on the surface of the flap 33 will slide to the lower side of the sealing plate 30 under the action of gravity, and the flap 33 will flip downward. The plate 33 will stretch the pull rod 35 during the flipping process. After the mud and sand on the surface of the flap 33 falls off, the flap 33 will flip back and reset under the elastic force of the pull rod 35, thereby reducing the residual mud and sand on the upper side of the sealing plate 30. During the rotation of the flap 33, the scraper 37 on its surface will slide downward under the action of gravity. The guide groove 36 on the surface of the flap 33 can play a sliding guide role for the scraper 37. The scraper 37 will scrape the surface of the flap 33 during the sliding process, thereby helping to scrape off the mud and sand on the surface of the flap 33. By setting up a discharge assembly, the mud and sand on the surface of the flap 33 can be scraped off in time, thereby effectively reducing the residual amount of mud and sand on the surface of the flap 33, and further reducing the probability of mud and sand reflux, thereby further improving the water quality filtration quality.

[0030] like Figure 4 and Figure 8 As shown, a curtain 38 is fixedly connected to the lower end of the inner surface of the fixed cylinder 20. The curtains 38 are in two groups and are symmetrically distributed on the front and rear sides of the flap 33. The curtains 38 are made of flexible material. A fixing rod 39 is fixedly connected between the two groups of curtains 38.

[0031] A cable 45 is fixedly connected to the middle of the outer surface of the curtain 38, and a material receiving plate 46 is fixedly connected to the outer surface of the cable 45. The cable 45 is made of elastic material. The material receiving plate 46 is located directly below the connecting pipe 22. The curtain 38 is in an arc shape.

[0032] A sand discharge port 21 is provided on the left side of the outer surface of the fixed cylinder 20. A sewage discharge pipe 17 is fixedly connected to the left side of the outer surface of the aggregate box 11. A gate valve 18 is fixedly connected to the inner surface of the sewage discharge pipe 17. The buffer plate 47 is arc-shaped, and the separation cylinder 12 is conical.

[0033] By adopting the above technical solution, the baffle curtain 38 inside the fixed cylinder 20 can play a good guiding role for the sediment, so that the sediment can be gathered on the surface of the flap 33. When the flap 33 is turned by a certain angle, the flap 33 will contact the fixing rod 39 between the flap 33 and the baffle curtain 38. The baffle curtain 38 will be pulled by the fixing rod 39, so that the sediment on the surface of the baffle curtain 38 can be accelerated to fall. When part of the sediment falls from the connecting pipe 22, it will fall on the surface of the receiving plate 46. The sediment will impact the receiving plate 46, causing the receiving plate 46 to turn over. During the rotation of the receiving plate 46, the cable 45 will be twisted and wound, so that the baffle curtain 38 can be effectively pulled through the cable 45, which helps to increase the shaking amplitude of the baffle curtain 38 and improve the smoothness of the sediment falling on the surface of the baffle curtain 38. The sediment inside the fixed cylinder 20 is discharged to the inside of the fixed cylinder 20 through the sand discharge port 21, and then the sediment inside the aggregate box 11 is discharged through the sewage discharge pipe 17 by opening the gate valve 18, so that the difficulty of cleaning the inside of the aggregate box 11 can be effectively reduced.

[0034] Usage method: The water quality filtration system is one of the important devices in the farmland irrigation system. During operation, water is injected into the inside of the diversion cylinder 13 through the water inlet pipe 14 by a water pump. After the water flows into the inside of the diversion cylinder 13, it will flow downward in a spiral shape between the diversion cylinder 13 and the isolation cover 16. The sediment in the water will be separated from the water under the action of gravity and centrifugal force. The sediment will fall downward under the action of gravity into the inside of the fixed cylinder 20. When the sediment inside the fixed cylinder 20 flows upward, the movable plate 27 will turn upward and reset under the elastic force of the traction rope 26, and the inside of the connecting pipe 22 will be sealed by the movable plate 27, so that the sediment can be effectively prevented from flowing upward. During the upward movement of the extrusion pipe 42, it will be in close contact with the outer surface of the lower end of the movable plate 27, so that the movable plate 27 will be pushed by the extrusion pipe 42 to gather more tightly, which helps to improve the sealing effect of the movable plate 27 on the inside of the connecting pipe 22. At the same time, the sealing curtain 43 will be pushed upward by the top plate 44, and the overflow groove 28 on the surface of the connecting pipe 22 will be sealed by the sealing curtain 43. The flap 33 will turn downward under the action of the sediment gravity, and the sediment on the surface of the flap 33 will slide downward under the action of gravity to the lower side of the sealing plate 30. During the rotation of the flap 33, the scraping plate 37 on its surface will slide downward under the action of gravity, and the scraping plate 37 will scrape the surface of the flap 33 during the sliding process, so that the sediment on the surface of the flap 33 can be effectively scraped off, and the probability of sediment backflow can be effectively reduced.

[0035] The above are only the preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A high-standard farmland water-saving irrigation system, comprising a guide tube (13), characterized in that: The lower end of the guide cylinder (13) is fixedly connected to a separation cylinder (12), the outer surface of the lower end of the separation cylinder (12) is fixedly connected to a connecting pipe (22), the outer surface of the connecting pipe (22) is fixedly connected to a collection box (11), and a flow blocking component for blocking sediment backflow is provided inside the connecting pipe (22); The baffle assembly comprises a fixing frame (25) fixedly connected to the inner surface of the connecting pipe (22); the inner surface of the connecting pipe (22) is hingedly connected to a movable plate (27) located at the lower side of the fixing frame (25); the movable plate (27) is in a fan-shaped structure; the movable plates (27) are provided in multiple groups and are distributed in a ring-shaped array; the upper outer surfaces of the multiple groups of movable plates (27) are fixedly connected to a traction rope (26); the upper end of the traction rope (26) is fixedly connected to the outer surface of the lower end of the fixing frame (25); the lower side of the outer surface of the connecting pipe (22) is fixedly connected to a fixing cylinder (20); the lower end of the fixing cylinder (20) is fixedly connected to the lower end of the inner surface of the collecting box (11).

2. A high-standard farmland water-saving irrigation system according to claim 1, characterized in that: The lower end of the connecting pipe (22) is connected to the interior of the fixed cylinder (20); the outer surface of the upper end of the guide cylinder (13) is fixedly connected to a water outlet pipe (15); the rear side of the outer surface of the guide cylinder (13) is fixedly connected to a water inlet pipe (14); the guide cylinder (13) is connected to a water pump via the water inlet pipe (14); the upper end of the inner surface of the guide cylinder (13) is fixedly connected to an isolation cover (16); both upper and lower ends of the isolation cover (16) are open.

3. A high-standard farmland water-saving irrigation system according to claim 2, characterized in that: A reflux assembly is arranged outside the fixed cylinder (20), and the reflux assembly comprises a screen (19) fixedly connected to the outer surface of the fixed cylinder (20), and the screen (19) is in a circular ring shape. A filter screen (23) is fixedly connected to the upper end of the inner surface of the collecting box (11), and a guide plate (24) is fixedly connected to the outer surface of the lower end of the filter screen (23). An overflow groove (28) is provided on the outer surface of the connecting pipe (22), and the overflow grooves (28) are provided in a plurality of groups and are distributed in a ring-shaped array, and the lower end of the guide plate (24) is located at the lower side of the overflow groove (28).

4. A high-standard farmland water-saving irrigation system according to claim 3, characterized in that: A sealing assembly is provided on the inner side of the connecting tube (22), and the sealing assembly comprises movable grooves (40) provided on the inner surface of the connecting tube (22). The movable grooves (40) are provided in two groups and are symmetrically distributed. The inner sides of the two groups of movable grooves (40) are both slidably connected with movable blocks (41). An extrusion tube (42) is fixedly connected between the two groups of movable blocks (41). The extrusion tube (42) is in the shape of a hollow circular ring and is located on the lower side of the movable plate (27).

5. A high-standard farmland water-saving irrigation system according to claim 4, characterized in that: The outer surface of the extrusion tube (42) is fixedly connected to a top plate (44), the top plate (44) being distributed in a circular ring shape. The inner surface of the connection tube (22) is located below the overflow groove (28) and is fixedly connected to a sealing curtain (43). The sealing curtains (43) are provided in a plurality of groups and are distributed in a circular array. The top plate (44) is located directly below the sealing curtains (43), and the sealing curtains (43) are made of a flexible material.

6. A high-standard farmland water-saving irrigation system according to claim 5, characterized in that: A discharge assembly is arranged inside the fixed cylinder (20), and the discharge assembly comprises a sealing plate (30) fixedly connected to the inner surface of the fixed cylinder (20); a mounting groove (31) is provided on the outer surface of the upper end of the sealing plate (30); a movable rod (32) is fixedly connected to the inner surface of the mounting groove (31); a flap (33) is rotatably connected to the outer surface of the movable rod (32); a buffer plate (47) is fixedly connected to the right side of the outer surface of the lower end of the connecting tube (22); a pull rod (35) is fixedly connected to the outer surface of the lower end of the flap (33); the lower end of the pull rod (35) is fixedly connected to the lower end of the inner surface of the collecting box (11); and the pull rod (35) is made of elastic material.

7. A high-standard farmland water-saving irrigation system according to claim 6, characterized in that: The outer surface of the upper end of the flap (33) is provided with guide grooves (36), the number of the guide grooves (36) being two groups and being distributed in parallel, a scraper (37) being slidably connected to the inner side of the guide groove (36), the scraper (37) being in a U-shaped structure, the outer surface of the lower end of the scraper (37) being in slidable contact with the upper end of the flap (33), the inner surface of the fixed cylinder (20) being fixedly connected to a limit plate (29) on the left side, the limit plate (29) being located at the lower side of the sealing plate (30).

8. A high-standard farmland water-saving irrigation system according to claim 7, characterized in that: A barrier curtain (38) is fixedly connected to the lower end of the inner surface of the fixed cylinder (20). The barrier curtains (38) are provided in two groups and are symmetrically distributed on the front and rear sides of the flap (33). The barrier curtains (38) are made of a flexible material. A fixing rod (39) is fixedly connected between the two groups of barrier curtains (38).

9. A high-standard farmland water-saving irrigation system according to claim 8, characterized in that: A cable (45) is fixedly connected to the middle of the outer surface of the barrier curtain (38), and a material receiving plate (46) is fixedly connected to the outer surface of the cable (45). The cable (45) is made of elastic material. The material receiving plate (46) is located directly below the connecting pipe (22). The barrier curtain (38) is in an arc shape.

10. A high-standard farmland water-saving irrigation system according to claim 9, characterized in that: A sand discharge port (21) is provided on the left side of the outer surface of the fixed cylinder (20), a sewage discharge pipe (17) is fixedly connected to the left side of the outer surface of the collecting box (11), a gate valve (18) is fixedly connected to the inner surface of the sewage discharge pipe (17), the buffer plate (47) is in an arc shape, and the separation cylinder (12) is in a conical shape.

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